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Due to the vulnerability that allows privilege escalation I wrote about in this post, Microsoft has released a cumulative update for all supported versions of Exchange Server (Exchange 2010, 2013, 2016 and 2019).

5th post of the Home Server series in which I explain how I built my own server.

In previous posts I have shown how to install an SSD disk to your HP microserver Gen8 server. Even if you do not have this hardware, in this post I will show step by step how to install the VMWare ESXi 6.5

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Symptoms

I manage a 2 node VSX clusterXL environment that hosts 3 firewalls (virtual systems).
Some days ago I came across a problem in which one of them started (or maybe more time ago but not aware) to experience bad performance, outages, timeouts…

Trying to make a failover and move the VS to the other node fixed the problem until … Read more

Although it is not essential I strongly encourage you to install an SSD disk to your HP Microserver Gen8 to host the system you want to run. I will use it for a VMWare ESX and the virtual machines that will create in it. As I said in the previous post, since the prices are more than affordable, the price/performance … Read more

Solution:

Some days ago I tried to cleanup old certificates from my Exchange servers, but I received the following error:

[PS] C:\> Remove-ExchangeCertificate -ThumbprintD09EDD6D5F18C175254AB97046AAAAAAAAAAAAA
Confirm
Are you sure you want to perform this action?
Remove certificate with thumbprint DD09EDD6D5F18C175254AB97046AAAAAAAAAAAAA from the computer's certificate store?
[Y] Yes [A] Yes to All [N] No [L] No to All [?] Help (default is

I was not sure about updating my Exchange 2013 directly from CU12 to CU21. It is supposed to be supported by Microsoft. Maybe I could install an intermediate CU before but, anyway, I decided to move on.… Read more